Meaning of QUADRATIC in English

QUADRATIC

adj. & n. Math.

--adj.

1. involving the second and no higher power of an unknown quantity or variable (quadratic equation).

2 square.

--n.

1. a quadratic equation.

2 (in pl.) the branch of algebra dealing with these.

Etymology: F quadratique or mod.L quadraticus (as QUADRATE)

Oxford English vocab.      Оксфордский английский словарь.